Plaster construction



June l0, 1930. H. R. sHANKs 1,763,262

PLASTER CONSTRUCTION Filed Apri; 15, 1929 ,2V sheets-sheet v1 ,www

x mm H. R. SHANKS PLASTER CONSTRUCTION June 10, 1930.

Fiied' April 15, 1929 2 sheets-sheet 2 ggg/galli Patented June 10, 1930 HENRY R. SHANKS, OF DALLAS, TEXAS PLASTER CONSTRUCTION VApplication led April 13,

This invention relates to new and useful improvements in furring systems or for erecting plaster boards or rock lath when plaster is applied to a wall. Y

6 The primary. object of the invention is to provide means for preventing the board or panels used from moving out of alignment in the wall or ceiling, due to shrinkage, eXpansion and contraction of woodwork or other causes, resulting in cracking and dislodgment of the plaster.

More specifically the invention provides means for spacing the wall board from the wall or ceiling supports and for enabling the board thus spaced to be held in rigid position for application of the plaster.

Another object is to provide a strengthening means in addition to the above for certain types of wall board less rigid than others.

` Other objects of the invention will become apparent as the description of the invention proceeds, reference being had to the drawings herein and in which: y

Figure 1 is a fragmentary face view of a plastered wall embodying the invention, the

plaster broken away to show construction,

Figure 2 is an enlarged vertical transverse sectional view through a portion of a plastered wall, showing the manner of securing the boards in place,

Figure 3 is a front or face view of Figure 2, the plaster partly removed,

Figures 4 and 5 are, respectively, a side and a partial longitudinal sectional view of a preferred form of element for holding the grooved or channeled wire cloth onto a studdino',

Ftigure 6 is a fragmentary face view of a wall construction embodying the invention the plaster partly removed, and illustrating a modification of the invention,

Figure 7 is a transverse vertical sectional view on the line 7 7 of Figure 6, Y

Figure 8 is a fragmentary sectional view of a wall construction embodying another moditication, the wall boards not shown,

VFigure 9 is a transverse vertical sectional view of Figure 8 on the line 9 9 thereof,

Figure 10 is a perspective View of a clamp used with the wire cloth when desired, and

1929. Serial N'o. 354,798.

Figure 11 is a perspective view of a strengthening element used with the wire cloth where necessary.

Proceeding in accordance with the drawings and wherein numerals are Vemployed to designatethe various parts, a portion of a wall constructed in accordance with the invention is shown in Figures 1, 2 and 3, the wall boards 2 being held in spaced position from the studding 3 by the channeled wire cloth strips 4.

The channeled wire mesh or cloth 4' is grooved centrally from end to end, the strip being from two and one-half to three inches wide. The groove 5 at the center of the strip is approximately three-eighths of an inch deep and about one-fourth of an inch wide. The wings or flanges 6 on opposite sides of the groove provide a recess for the boards 2. These boards are generally about threeeighths of an inch in thickness and thus leave a one-eighth inch play or space A between the board 2 and studding 3.

A clamp Tof about one-fourth to one-half inches in width, of thin metal, may be used at each studding or ceiling oist to strengthen the construction. This, however, is not compulsory. One of these clamps is shown in Figure 10, and includes the same size groove 5 as the groove in the cloth strip 4E.

The clamp 7 is applied by means of a nail or'elernent having a sheath or covering 8 of steel which surrounds the upper half of the nail 9. See Figures 4 and 5. The lower end of the sheath provides a stop 10, as the end of the sheath after passing through the clamp in the aperture 11, abuts theV wire cloth and studding. The top of the sheath is then flush with theface of the wings or flanges 6 and the plaster 12 then covers the sheath, leaving 90 the upper end of the nail or element 9 free to move within the latter. This provides for any shrinkage, expansion or contraction of the studding and prevents the plaster from cracking since the boards and plaster are suspended and supported entirely upon the nails 9. The space A likewise prevents the back of the boards from coming into contact with the studding. f

The sheath has another function, that of preventing the wire cloth strips 4 from being injured by the operators tool in advancing the nail into the groove. The hammer or tool cannot dent the strips 4 or clamp 7 since when the stop 10 strikes the studding the sheath is level with the top of the clamp. The sheath is of steel, and the driving force of the hammer will depress the head of the sheath onto the nail head, the sheath springing back to normal position.

Then only one thin coat of plastic material is required, the clamp element is of one solid length, shown in Figure 6 at 7 and has a central longitudinal groove 5 the same as the wire cloth strip 4.

rlhe studs or joists may be spaced from 12 to 48 inches apart. illhen they are spaced a distance to exceed 16 inches, a wire or pencil rod 13 is used. This element is set in the groove 14 and the size of the pencil rod or other element to be governed by the distance between the stud and joist. rl`he nail 9 with its sheath 8 is driven through the wire cloth 4 adjacent the pencil rod; a short strip 14 with an opening 15 being previously placed across the groove to strengthen the cloth, as in Figures 8 and 9.

The foregoing described a means and method whereby considerable saving of time and labor is had, giving a well-reinforced job with no additional cost over present manner of construction.

The invention is not to be understood as restricted to the specific elements herein described, but is capable of further modifications such as will be within the scope and meaning of the appended claims.

lhat is claimed as new is z i l. A support for wall boards in the construction of plaster walls, comprising a longitudinally grooved metallic element, means for attaching the elements to studding whereby the wall boards are suspended by the element, leaving a space between the back of the boards and the studding for play of kthe boards said means including a driven element headed at one end and pointed at the other for penetrating the studding and a spacer element covering the head and a portion of the shank of the driven element and having a shoulder adapted to engage the surface of the studding to limit the penetration of the driven element.

2. A device for supporting wall boards in constructing plastic walls, comprising in combination with the wall board and studding, a plurality of metallic strips having a central outstruck portion comprising a groove; means for attaching the outstruck portion to the studding, the portions of the element on opposite sides of the groove providing a recess for the boards; and means separate from said strips and cooperating with the attaching means for spacing the boards from the studding.

3. A support for wall boards used in erecting plastic walls, comprising, in combination with the studding, a plurality of elongated strips of metal having a' web structure, a central groove running from end to end of the strips, flange portions of open work material on each side of the groove adapted to be embedded in the plastic material, said boards being held in a recess formed between the outer walls of the groove, the back of the flange portions and the studding, said recess providing a free space for play of the boards.

4. A support for wall boards in erecting plast-ic walls, comprising, in combination with the studding, a plurality of elongated metallic strips, a groove centrally of the strips and running from end to end of the strip; flange portions formed on the sides of the groove to support the boards and embedded in the plastic walls; said construction providing a space between the backs of the boards and the studding to provide for contraction, expansion or shrinkage.

5. In a wall construction, including studding, wall boards secured in spaced relation to the studding and a plaster coating on the outside of the wall boards; the improvement which comprises a support for the plaster and for the wall boards, said support comprising an elongated element having a central grooved portion extending between adj acent wall boards, but of greater depth than the thickness of the wall boards, and having wire mesh flanges extending laterally from the grooved portion over the adjacent wall boards, said iianges being embedded within the plaster coating applied on the outside of the wall board, and fastening means extending through said grooved portion into the studding and serving to hold the wall boards in spaced relation with reference to the studding.

In testimony whereof I aliix my signature.

HENRY R. SHANKS. 

